{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "The polymer , poly ( ethylene glycol ) - poly ( serinol hexamethylene urethane ) ( ESHU ) , forms a physical gel when heated to 37 degrees C and shows good cytocompatibility with ocular cells ."}
{"Chemical": ["poly ( ethylene glycol ) - poly ( serinol hexamethylene urethane )", "ESHU"]}